4-(4-Chlorophenyl)-2-(2,4-dichloro-5-methoxyphenyl)phthalazin-1(2H)-one CAS 400087-12-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 400087-12-9 |
| Molecular Formula | C21H13Cl3N2O2 |
| Molecular Weight | 431.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(4-Chlorophenyl)-2-(2,4-dichloro-5-methoxyphenyl)phthalazin-1(2H)-one (CAS 400087-12-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C21H13Cl3N2O2. Molecular weight: 431.70 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C21H13Cl3N2O2 |
| Molecular Weight | 431.70 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chlorophenyl Standards
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- 2-((trans-4-((((4-Chlorophenyl)(phenyl)carbamoyl)oxy)methyl)cyclohexyl)methoxy)acetic acid (CAS 1187856-49-0)
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- (E)-1-(2-(4-chlorophenyl)-4-methylthiazol-5-yl)-3-(4-phenoxyphenyl)prop-2-en-1-one (CAS 477847-79-3)
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- Ethyl 2-((6-(((4-chlorophenyl)thio)methyl)-2-(pyridin-2-yl)pyrimidin-4-yl)thio)acetate (CAS 860609-57-0)
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Recommended Standards
- 1-(5-(Benzyloxy)-2,4-dichlorophenyl)-5-(4-chlorophenyl)-1H-tetrazole (CAS 338961-47-0)
- Opicapone Impurity 50 (CAS CATO-C4X-240450)
- S-((1H-Benzo[d]imidazol-2-yl)methyl) dioctylcarbamothioate (CAS 652142-50-2)
- (S)-4-benzyl-6-(chloromethyl)-2,2-dimethylmorpholine (CAS 2007940-84-1)
- Methyl 3-bromo-1-methyl-1H-1,2,4-triazole-5-carboxylate (CAS 1559067-56-9)
- 3-Fluoro-4-(trifluoromethoxy)benzenethiol (CAS 1443346-76-6)
- 1H-Pyrazolo[3,4-b]pyridin-1-ol (CAS 159487-16-8)
- 2-(5-methyl-2-phenyloxazol-4-yl)ethyl 4-methylbenzenesulfonate (CAS 170861-68-4)
- Ethyl 1-(2-bromobutanoyl)piperidine-4-carboxylate (CAS 1119453-06-3)
- Tirzepatide Impurity 12 (CAS CATO-C4X-324012)
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